1 /*
2 * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
4 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22 #include "config.h"
23
24 #include "core/svg/SVGClipPathElement.h"
25
26 #include "core/rendering/svg/RenderSVGResourceClipper.h"
27 #include "core/svg/SVGElementInstance.h"
28
29 namespace WebCore {
30
31 // Animated property definitions
DEFINE_ANIMATED_ENUMERATION(SVGClipPathElement,SVGNames::clipPathUnitsAttr,ClipPathUnits,clipPathUnits,SVGUnitTypes::SVGUnitType)32 DEFINE_ANIMATED_ENUMERATION(SVGClipPathElement, SVGNames::clipPathUnitsAttr, ClipPathUnits, clipPathUnits, SVGUnitTypes::SVGUnitType)
33 DEFINE_ANIMATED_BOOLEAN(SVGClipPathElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
34
35 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGClipPathElement)
36 REGISTER_LOCAL_ANIMATED_PROPERTY(clipPathUnits)
37 REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
38 REGISTER_PARENT_ANIMATED_PROPERTIES(SVGGraphicsElement)
39 END_REGISTER_ANIMATED_PROPERTIES
40
41 inline SVGClipPathElement::SVGClipPathElement(Document& document)
42 : SVGGraphicsElement(SVGNames::clipPathTag, document)
43 , m_clipPathUnits(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE)
44 {
45 ScriptWrappable::init(this);
46 registerAnimatedPropertiesForSVGClipPathElement();
47 }
48
create(Document & document)49 PassRefPtr<SVGClipPathElement> SVGClipPathElement::create(Document& document)
50 {
51 return adoptRef(new SVGClipPathElement(document));
52 }
53
isSupportedAttribute(const QualifiedName & attrName)54 bool SVGClipPathElement::isSupportedAttribute(const QualifiedName& attrName)
55 {
56 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
57 if (supportedAttributes.isEmpty()) {
58 SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
59 supportedAttributes.add(SVGNames::clipPathUnitsAttr);
60 }
61 return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
62 }
63
parseAttribute(const QualifiedName & name,const AtomicString & value)64 void SVGClipPathElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
65 {
66 if (!isSupportedAttribute(name)) {
67 SVGGraphicsElement::parseAttribute(name, value);
68 return;
69 }
70
71 if (name == SVGNames::clipPathUnitsAttr) {
72 SVGUnitTypes::SVGUnitType propertyValue = SVGPropertyTraits<SVGUnitTypes::SVGUnitType>::fromString(value);
73 if (propertyValue > 0)
74 setClipPathUnitsBaseValue(propertyValue);
75 return;
76 }
77
78 if (SVGExternalResourcesRequired::parseAttribute(name, value))
79 return;
80
81 ASSERT_NOT_REACHED();
82 }
83
svgAttributeChanged(const QualifiedName & attrName)84 void SVGClipPathElement::svgAttributeChanged(const QualifiedName& attrName)
85 {
86 if (!isSupportedAttribute(attrName)) {
87 SVGGraphicsElement::svgAttributeChanged(attrName);
88 return;
89 }
90
91 SVGElementInstance::InvalidationGuard invalidationGuard(this);
92
93 RenderSVGResourceContainer* renderer = toRenderSVGResourceContainer(this->renderer());
94 if (renderer)
95 renderer->invalidateCacheAndMarkForLayout();
96 }
97
childrenChanged(bool changedByParser,Node * beforeChange,Node * afterChange,int childCountDelta)98 void SVGClipPathElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
99 {
100 SVGGraphicsElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
101
102 if (changedByParser)
103 return;
104
105 if (RenderObject* object = renderer())
106 object->setNeedsLayout();
107 }
108
createRenderer(RenderStyle *)109 RenderObject* SVGClipPathElement::createRenderer(RenderStyle*)
110 {
111 return new RenderSVGResourceClipper(this);
112 }
113
114 }
115